Grinding-mill.



D. S. ANTHONY.'

GRINDING MILL.

APPLIOATION FILED nume, 1907.

Patented oct.'2o,19os.

3 SHEETS-SHEET 1'.

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- w/TNEssEs" A TTOHNEYS D. S. ANTHONY.

GBINDING MILL;

APPLICATION FILED IAILZE, 1907.

Patented Oct. 20, 1908.

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GRINDING MILL. APP'LIGATION FILED JAN. z5, 1907.

901,7"7'0, Pamntea oct. 20,1908.-

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, fig-7- gym@ THONY, a citizen ofthe DAVID SMITH-ANTHONY, OF DURANGO,

Mexico.4

Sp-eccation of Letters Patent.

Patented oet. 2o, 190s,

Application' filed January 25, 19m. v.su-n.1 No. asaoss. f

To all whom it mag/concern.' v Be it known that I, vDAVID SMITH AN- United States, and a resident of Durango, Mexico, yhave invented a newv and Improved Grinding-Mill, of which the following is a full, clear, and exact descri tion.

he object of the invention is to provide-a new and improved grinding mill, more especially designed for grinding middlings, and ary ranged to insure ready'grinding of the corn y or other material to any esired degree of iine-l vness, and to allow easy sharpeningA of the after andthen pointed out res v with the same when the Alatter uppery epd ,of the grinding members.

e invention consists of novel features and parts and combinations. of the same, which 4will be more fully described hereinin the claims'.

A practical embodiment of the invention is represented in the accompanying drawings forming apart of this s similar characters of re erence indicate coronding parts in all lthe views. I igure 1 is a plan view of the improvement; Fig. 2 is allongltudinal sectional elevation of the same, on the line 2-2 of'Fig. 1 Fig. 3 isf an enlarged side elevation of the stopping vand-startlng mechanism g Fig. 4 is a transverse section of the same on the line 4-4 of Fi 3; frlction drive; Fig. 6 1s an enlarged face view of one of the gr' tionall side elevation of the same on the line 7 17 of Fig. 6, and Fig. 8 is a section on line 8--8 of Fig. 6.

On a suitably constructed'f-rame A is journaled in bearin s A', A2, the main driven shaft B, provided at one end with 'a head C in w 'ch is secured a grindin in conjunction with a fixe grinding ring D, both grinding rin s D and D being arran ed within a casing Eavin its end E hinge at E2 lte the casing, to a ow of convenlently. opening the casing whenever desired, with Aa view to gain access to the rinding rings Dv and D. Normally the end is lockedin a ig. 5 is an enlarged transverse section o theon the casin E andengaging lu s Eon the end E, asp ainly'indicated 1n ig. 1.V The end E is provided with an inlet o ening E5'V to; which leads the delivery spout F1? secured 'to the outer lface of the end E, so as to swing' spout. F being adaptedto Vforming vin order to feed rin s D and' D', veach o eclication, in Whichdin'g rings, rFig. 7 is a sec- .ring D in ring D operating block outside thereof, and the v Ils engaged by a set screw J held in an arml closed'position by an eye fboltE fulcrumed J2 isv opened, the"- register with a feed spout F fixed on the casing E. The bottom of the casing E is vided withan outlet-E" for discharging the vmiddling's into a receptacle or into other means for delivering themiddlings to a suitable place of discharge. l r

he grindin rings D and D are provided on their opposite faces'with corrugations Dz grindingteeth for grinding vthe corn or other-material to the desired degree, and

the material Vproperly between the two grindin faces of the grindin the latter is rovide Wit inclined .teeth D3 extending roI'n the rinding faceof the ring'to the annular flange 4 at the outer face of said rin .The teeth extend from the inner periphery of the ring proto about the center of thering and each are of a length to extend under the ceding tooth, so another. By thus constructing next pre` the rings the corn or other material delivered by thespout F throughthe opening E5 Vinto the casing falls onto the feed teeth D3, which latterdeliver the material to the grinding faces, sothat thevmaterial is properly groun by the corrugations D3 of the 'grinding rin s.

B. constructing the y teetli7 as described the grinding faces D2 can be lkept sharp and the grinding rings can be used untilworn to the said flanges D4.-

In order to hold the removable grindin roper grindingrelation with the fixed grinding ring D ressure is exerted against the outer end fp the shaftA B in an axial direction, lowing device is provided: he outer end of the shaft B abuts against a ball G, pressed on that the teeth overlap one grinding rings with l' and for this urpos'e the fol-V by apressure block H mountedin a suitable l bearing Aon the mainframe A, which bearing forms-a continuation of the outermost bearin A for Vthe shaft B. The pressure `is engaged by a pin I mounted to' slide in a bearing A? and extending-.to the forming part ofthe lever J-fulcrumed at Jj" on the bearmg A3.; A weight K is adjustably held on thelever J so as toI exert more'or. less pressure 'in an axial ythej, connections above describe@ that 1s, the `arm J, vthe' setvscrew J', the in I-,f the pressure'blockH and the ball G.

outer end of this pin directionfonfthe shaft B y the us y of the ball G interposed between the pressure block H andere Shaft B pressed on the friction is reduced toa minlmnm, and

Weight K on the lever e grin ing ring D 'canb'e pressed With more or less force against the iixed grinding ring D In order to rotate the shaft B the followin device is provided: A pulley L is mounte to rotate loosely on the main Shaft B, and is connected by a belt with other machinery, for im arting a continuous rotary motion to the pu ley L. The pulley L is provided with an auxiliary rim L adapted to be engaged its inner surface by a split Jfriction rm at its ends by a cam O secure on a shaft O journaled in a carrier P keyed or otherwise secured to the shaft B so as to rotate thc same. `On the shaft Ois secured an arm O'l carrying a set screw O3 adapted to be engaged by the beveled end Q of a sleeve Q mounted to slide on the shaft B and engaged by a shifter arm R held on a rod R I mounted to slide longitudinally in suitable bearings A4 arranged on the main frame A. The bar R is provided with a pin ItZ extendincr into an elongated slot S on a hand lever S fulcrumed at S2 on the main frame A and under the c'ontrolA of the operator. Now when the latterswings the hand lever S in the direction of the arrow a then the sleeve Q is moved from the right to the left, and its beveled end Q moves in O2, so as to impart an outward swinging motion to the arm O2, to rock the shaft O and to cause the cam O to open up or expand the friction ring N, with a view to press the same in rm contact With the 'rim L', so that the rotary motion of the pulley L carries the rin N along, and consequently the carrier P 4Q an shaft B, to rotate the grinding ring D.

In order to counterbalance the carrier P as much as possible a dummy-arm P is rovided similar to the arm O2 and secure on the carrier P diametrically opposite to the arm O2.

Having thus described my invention, I

at the same time l all end thrust is taken By arusting the at N.

contact with the arm claim as new and vdesire to secure by Letters A' rinding mill having a-ixed ring an a revoluble grindin ring, t e rings having a common horizontal y disposed axls and each having innlined and overlapping teeth, said teeth extending from the inner surface` of the outer face to the inner'or grinding face of the ring and from the inner periphery of the ring to about the center thereof.

2. In a grinding mill, a frame having bear'- ings, one of which is elongated, a shaft mounted in the bearings, a -grinding disk on one end of the shaft, a stationary grinding disk, a sliding block in the elongated bearing, a ball between the block and the other end of the shaft, a pin slidably mounted; in the elongated bearing and having one end engaging the block and its other end projecting out through said bearin a Weighted lever pivoted to the elongate bearing and provided With an arm, and ascrew 1n the arm and engagin the said pin.

3. A grin 'ng mill, comprising a frame, a casing at one end of the frame and having a central inlet openingl therein, a shaft mounted'in the frame to and having one end projecting into the casing, a grinding ring secured directly to the end of the shaftm the casing, a second grinding ring secured to the inner face of thecasin the rings being each rovided With incline and overlappin teet extending from the inner surface of t e outer face to the inner or grinding face, a yielding pressure device for the end of the shaft to hold the revoluble rinding ring in grinding relation to the xe ring, and means for operating said shaft.

yIn testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

DAVID SMITH ANTHONY.

Witnesses:

JAMES A. LE ROY, GEORGE H. EMsLIE.

rinding i ave endwise movement y 

